[基于CO-CO2傅里叶变换红外光谱技术的早期火灾探测研究]

[Research on early fire detection with CO-CO2 FTIR-spectroscopy].

作者信息

Du Jian-hua, Zhang Ren-cheng, Huang Xiang-ying, Gong Xue, Zhang Xiao-hua

机构信息

College of Mechanical Engineering and Automation of Huaqiao University, Quanzhou 362011, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2007 May;27(5):899-903.

PMID:17655099

Abstract

A new fire detection method is put forward based on the theory of FTIR spectroscopy through analyzing all kinds of detection methods, in which CO and CO2 are chosen as early fire detection objects, and an early fire experiment system has been set up. The concentration characters of CO and CO2 were obtained through early fire experiments including real alarm sources and nuisance alarm sources. In real alarm sources there are abundant CO and CO2 which change regularly. In nuisance alarm sources there is almost no CO. So it's feasible to reduce the false alarms and increase the sensitivity of early fire detectors through analyzing the concentration characters of CO and CO2.

摘要

通过对各类火灾探测方法进行分析，基于傅里叶变换红外光谱（FTIR）理论提出了一种新的火灾探测方法，其中选择一氧化碳（CO）和二氧化碳（CO₂）作为早期火灾探测对象，并搭建了早期火灾实验系统。通过包含真实报警源和误报源的早期火灾实验，获取了CO和CO₂的浓度特征。在真实报警源中存在大量且呈规律性变化的CO和CO₂。在误报源中几乎不存在CO。因此，通过分析CO和CO₂的浓度特征来减少误报并提高早期火灾探测器的灵敏度是可行的。